Personal Info
Birthday
May 7, 1984
Place of Birth
St. Johns, Newfoundland, Canada
Known For
Acting
Mark O'Brien
Biography
Mark O'Brien (born May 7th, 1984) is a Canadian actor and director. He is best known for playing the role of Des Courtney in Republic of Doyle (2010) and Tom Rendon in Halt and Catch Fire (2014).
Directed Movies (4)
Acting Filmography (47)
5.8
The Outer Threat
Movie2026
6.4
The Voices of Our Mother
Movie2026
6.5
The Copenhagen Test
TV Series2025
7.6
Nuremberg
Movie2025
0.0
The Memory Keeper
Movie2025
5.7
Shadow of God
Movie2025
5.7
Seven Veils
Movie2025
5.3
Topper
Movie2025
7.2
The Sticky
TV Series2024
6.6
61st Street
TV Series2022
7.4
Blue Bayou
Movie2021
6.3
The Righteous
Movie2021
8.1
Your Honor
TV Series2020
7.2
Perry Mason
TV Series2020
5.4
Hammer
Movie2019
7.7
Marriage Story
Movie2019
6.3
The Kelly Clarkson Show
TV Series2019
7.1
Ready or Not
Movie2019
7.3
City on a Hill
TV Series2019
6.8
Goalie
Movie2019
4.7
State Like Sleep
Movie2019
5.9
The Front Runner
Movie2018
6.8
Bad Times at the El Royale
Movie2018
6.1
Kin
Movie2018
7.0
The Darkest Minds
Movie2018
5.3
How It Ends
Movie2018
6.0
Anon
Movie2018
6.0
Parallel
Movie2018
7.0
The Last Tycoon
TV Series2017
7.6
Arrival
Movie2016
No Backdrop
0.0
Wanderer
Movie2016
4.9
The Dark Stranger
Movie2016
5.1
How to Plan an Orgy in a Small Town
Movie2015
6.9
Killjoys
TV Series2015
5.8
End of Days, Inc.
Movie2015
No Backdrop
0.0
Dennis
Movie2015
7.9
Halt and Catch Fire
TV Series2014
8.3
Hannibal
TV Series2013
0.0
Beat Down
Movie2012
0.0
Snarbuckled
Movie2010
5.1
Grown Up Movie Star
Movie2010
7.0
Republic of Doyle
TV Series2010
7.7
Warehouse 13
TV Series2009
0.0
Heartless Disappearance Into Labrador Seas
Movie2008
4.3
The One That Got Away
Movie2008
No Backdrop
3.8
The Four Horsemen
Movie2008
No Backdrop
0.0
Little One
MovieN/A